Title :
Coherent crosstalk and scalability of free-space wavelength routers
Author :
Churin, E.G. ; Bayvel, P.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
fDate :
6/11/1998 12:00:00 AM
Abstract :
The capacity of WDM routers is limited by coherent crosstalk. The authors consider the main sources of stray light in free-space routers and estimate the power penalty due to the port-count increase. It is shown that holographic grating based free-space routers with circular and `diamond´ apertures are completely scalable from a crosstalk point of view
Keywords :
holographic gratings; optical communication equipment; optical crosstalk; wavelength division multiplexing; WDM routers; circular apertures; coherent crosstalk; diamond shaped apertures; free-space wavelength routers; holographic grating based routers; port-count increase; power penalty; scalability;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980903
